Probing the inner jet of M87; from the jet base to HST-1
The giant radio galaxy M87 accompanies one of the nearest Active-Galactic-Nuclei jets showing the intense radiation through radio to TeV gamma-ray. Its proximity and the large mass of the central black hole provide an excellent advantage to probe the sites of jet formation and gamma-ray production....
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2013-12-01
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Online Access: | http://dx.doi.org/10.1051/epjconf/20136101002 |
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doaj-4aca42a2c8064424a68f67cac3015dc52021-08-02T03:50:56ZengEDP SciencesEPJ Web of Conferences2100-014X2013-12-01610100210.1051/epjconf/20136101002Probing the inner jet of M87; from the jet base to HST-1Hada KazuhiroThe giant radio galaxy M87 accompanies one of the nearest Active-Galactic-Nuclei jets showing the intense radiation through radio to TeV gamma-ray. Its proximity and the large mass of the central black hole provide an excellent advantage to probe the sites of jet formation and gamma-ray production. Here we review some of our recent studies for the inner jet of M87 based on the multi-frequency and multi-epoch VLBI observations, especially focusing on the two remarkable regions i.e., the jet base near the black hole and the peculiar feature HST-1. Our multi-frequency observations with the phase-referencing technique revealed the detailed structure of the jet base region regarding the location of the central engine and the collimation profile. In terms of HST-1, the intense multi-epoch VLBI monitoring constrained the accurate kinematic properties and the structural variations in this complicated feature, together with a possible connection to the gamma-ray activities. At the end of this contribution, we briefly describe our new monitoring project for M87 with VERA, which permits a detailed study on the structural evolution in the jet base region. http://dx.doi.org/10.1051/epjconf/20136101002 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hada Kazuhiro |
spellingShingle |
Hada Kazuhiro Probing the inner jet of M87; from the jet base to HST-1 EPJ Web of Conferences |
author_facet |
Hada Kazuhiro |
author_sort |
Hada Kazuhiro |
title |
Probing the inner jet of M87; from the jet base to HST-1 |
title_short |
Probing the inner jet of M87; from the jet base to HST-1 |
title_full |
Probing the inner jet of M87; from the jet base to HST-1 |
title_fullStr |
Probing the inner jet of M87; from the jet base to HST-1 |
title_full_unstemmed |
Probing the inner jet of M87; from the jet base to HST-1 |
title_sort |
probing the inner jet of m87; from the jet base to hst-1 |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2013-12-01 |
description |
The giant radio galaxy M87 accompanies one of the nearest Active-Galactic-Nuclei jets showing the intense radiation through radio to TeV gamma-ray. Its proximity and the large mass of the central black hole provide an excellent advantage to probe the sites of jet formation and gamma-ray production. Here we review some of our recent studies for the inner jet of M87 based on the multi-frequency and multi-epoch VLBI observations, especially focusing on the two remarkable regions i.e., the jet base near the black hole and the peculiar feature HST-1. Our multi-frequency observations with the phase-referencing technique revealed the detailed structure of the jet base region regarding the location of the central engine and the collimation profile. In terms of HST-1, the intense multi-epoch VLBI monitoring constrained the accurate kinematic properties and the structural variations in this complicated feature, together with a possible connection to the gamma-ray activities. At the end of this contribution, we briefly describe our new monitoring project for M87 with VERA, which permits a detailed study on the structural evolution in the jet base region. |
url |
http://dx.doi.org/10.1051/epjconf/20136101002 |
work_keys_str_mv |
AT hadakazuhiro probingtheinnerjetofm87fromthejetbasetohst1 |
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